Re: ack no class

On Mar 29, 2009, at 3:26 PM, Mark Sibly wrote:
I've recently had a few reports that apps generated by the Mac version
are producing a mysterious "ack no class" error when they start up -
similar to this:

2009-03-24 22:26:14.460 test[10329:717] ack no class

This appears to be written to 'stderr' and is occuring somewhere
between [NSApp run] and the [applicationDidFinishLaunching] method in
the app delegate - ie: it appears to be somewhere inside OsX/Cocoa.

I have been unable to reproduce this myself, but it's occurring on at
least one other machine with an identical config to mine - an Intel
Mac with OS X 10.5.6.

Has anyone else encountered this?

From the few similar cases I've found via google, Safari beta4 has
been suggested as a cause but I have that installed and am not getting
this error.

This isn't obviously coming from Apple's code. I'm guessing it's printed by some plugin or haxie or something. Perhaps it's a web browser extension or add-on that is confused by changes in Safari 4.

Compare the installed software on your machine and the reproducible case you found. You can use `info shared` in gdb or the Xcode debugger console to print the libraries loaded in the process; if this is the fault of a plugin then you'll see it on their machine but not yours.

The "breakpoint on NSLog" suggestion also might help; that message is formatted like NSLog output.

Greg Parker gparker@xxxxxxxxx Runtime Wrangler


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